Three Twentysix
Three Twentysix
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What IS activation energy, really?
What is activation energy in chemistry? Where does it come from and why is it so important? Using 3D animations, we look at what gives reactions a high or low activation energy and why it is so important to reaction rates. Along the way, we look at examples, like the science of explosives and rocket fuels.
Kyushu University is one of Japan’s top universities. Check out the link to learn about our science and engineering courses in English: www.eng.kyushu-u.ac.jp/e/u_international.html
‘Ignition’ by John D Clark - I was going to post a link to a free resource but it appears the book is back in print. Since I’m not sure if the legal status of free links has changed, I’ll leave it to you to google it and do the right thing.
More on FOOF: www.science.org/content/blog-post/things-i-won-t-work-dioxygen-difluoride
Image credits:
NASA booster ignition: images-assets.nasa.gov/video/NASA's Space Launch System Booster Passes Major Milestone on Journey to Mars (QM-2)/NASA's Space Launch System Booster Passes Major Milestone on Journey to Mars (QM-2)~orig.mp4
Hypergolic footage from: Toxic Propellant Hazards, ua-cam.com/video/Zha9DyS-PPA/v-deo.html US National Archives
Mercury: NASA images-assets.nasa.gov/image/PIA11245/PIA11245~orig.jpg
Train explosion: Center for Disease Control: A Review of Recent Accidents Involving Explosives Transport
Mass spectrometer: Mass Spectrometer Service, University of Bath
C4: By Senior Airman Rusty Frank -, Public Domain, commons.wikimedia.org/w/index.php?curid=39209997
Rocket test firing photos (before and after explosion): US Navy
Free photos from pexels.com :
Baking: pexels-shvets-production-8900081
Sugar: pexels-suzyhazelwood-2523650
Visit us on Instagram:
sannijuroku
Three Twentysix Project Leader: Dr Andrew Robertson
3D animations/production assistant: Es Hiranpakorn
Graphic Design: Maria Sucianto
This video was produced at Kyushu University and supported by JSPS KAKENHI Grant Number JP21K02904. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of Kyushu University, JSPS or MEXT.
Переглядів: 20 606

Відео

How Do Chemical Reactions REALLY Happen?
Переглядів 44 тис.3 місяці тому
How do chemical reactions actually take place and what is chemical kinetics? With animations, we look at the chemistry and science of how reactions work, including: the exact moment two molecules meet, the kinetic theory of gases, why kinetics is all about probabilities, what the differences are between gas- and solution-phase reactions, and why solid phase reactions are so different (hint: it’...
How atoms REALLY make molecules!
Переглядів 164 тис.7 місяців тому
What is molecular orbital theory and how does it work? Are you confused about frontier orbitals, HOMO and LUMOs? These essential concepts in chemistry and science are explained with examples and 3D animations. How three oxygen atoms come together to make ozone: butane.chem.uiuc.edu/pshapley/genchem2/a7/2.html For a detailed academic lesson on molecular orbital theory, I recommend Chad’s Prep: u...
What ARE atomic orbitals?
Переглядів 264 тис.10 місяців тому
What ARE atomic orbitals?
I couldn’t believe what happened after this chemistry disaster!
Переглядів 8 тис.10 місяців тому
I couldn’t believe what happened after this chemistry disaster!
Boiling is more complex than you think!
Переглядів 18 тис.11 місяців тому
Boiling is more complex than you think!
How does evaporation REALLY work?
Переглядів 42 тис.Рік тому
How does evaporation REALLY work?
What IS the hydrogen economy?
Переглядів 11 тис.Рік тому
What IS the hydrogen economy?
I TRIPLED the effects of my caffeine!
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I TRIPLED the effects of my caffeine!
The Chemistry of Moisturisers
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The Chemistry of Moisturisers
Static electricity is more complicated than you think
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Static electricity is more complicated than you think
What is a Unit Cell?
Переглядів 11 тис.Рік тому
What is a Unit Cell?
Is nuclear power good or bad?
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Is nuclear power good or bad?
The Chemistry of Crystals
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The Chemistry of Crystals
Crystals crystals crystal
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Crystals crystals crystal
Chemistry bottle brush disaster!
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Chemistry bottle brush disaster!
The Chemistry of Fire
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The Chemistry of Fire
If Gravity Sucks What Blows?
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If Gravity Sucks What Blows?
STEM presentations (short version)
Переглядів 478Рік тому
STEM presentations (short version)
Chemistry disasters!
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Chemistry disasters!
Chemistry's Next Big Thing
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Chemistry's Next Big Thing
Nine rules for presentations
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Nine rules for presentations
Questions and Answers 1 (part 3)
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Questions and Answers 1 (part 3)
Hit me with your questions! (Part 2)
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Hit me with your questions! (Part 2)
Hit Me with Your Questions! (Part 1)
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Hit Me with Your Questions! (Part 1)
Hit Me with your Questions!
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Hit Me with your Questions!
Moles in the laboratory
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Moles in the laboratory
Complete History of the Avogadro Number
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Complete History of the Avogadro Number
Avogadro Number outtakes
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Avogadro Number outtakes
How and Why Do Chemists Use Moles?
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How and Why Do Chemists Use Moles?

КОМЕНТАРІ

  • @naderazizi191
    @naderazizi191 17 годин тому

    Where were you when I was in quantum physics courses in my university years? 30 years later, and now I get it! Thank you.

  • @vishaludaya1802
    @vishaludaya1802 День тому

    Normal people : Orbital My chemistry teacher: whore-bit-taal

  • @not-a-theist8251
    @not-a-theist8251 3 дні тому

    I colleague of mine made the same mistake and got some potassium hydroxide into his face. He wore his goggles and immediately washed it off so nothing serious happened

  • @user-lj5bs7vy8p
    @user-lj5bs7vy8p 3 дні тому

    Then what is smoldering ?

  • @Lisa-cw6zz
    @Lisa-cw6zz 3 дні тому

    I sure like your accent! - Thanks for a great video.

  • @user-tw5ch6pt6t
    @user-tw5ch6pt6t 4 дні тому

    @4:07 can we use centigrade and degree together? Very nice lecture please upload some on thermodynamics and chemical bonding from basic to advance because those two really bother me.

  • @xblackoceanx
    @xblackoceanx 4 дні тому

    I was looking for waldo

  • @TheAremihc
    @TheAremihc 4 дні тому

    I mean how could i've missed such high quality content. BRAVO! Outstanding work and passion.

  • @pirobot668beta
    @pirobot668beta 5 днів тому

    In High School shop class, the instructor had several sample of beryllium/copper alloy, known in the US as beryllium-bronze. It was common in small instruments as springs or electrical contacts. The color of the alloy is very distinctive. Teacher had lost part of a finger due to a sliver of beryl-bronze under his fingernail.

  • @saurav-zw3lh
    @saurav-zw3lh 5 днів тому

    is orbital a wave

  • @evannaallen4609
    @evannaallen4609 5 днів тому

    Shoutout to all the people who are here after watching Andrew Hall on Thunderbolt Project. 😳

  • @fattie_07
    @fattie_07 6 днів тому

    The place where people are likely to pass is an awesome explanation. Thanks

  • @davida3962
    @davida3962 8 днів тому

    I don’t usually like when educational UA-cam tries to be funny, or when funny people try to make educational content. But I honestly laughed so hard when you busted out the champagne. Well played, sir. And great follow up with Goodwin

  • @kisho2679
    @kisho2679 10 днів тому

    Is there a mathemstical method to calculate the amount of energy [eV] of each subshell (s, p, d, f) per shell (n=1,…,7) of an atom in the periodic table of chemical elements; and thus calculating theirs absorbion and emission spectra?

  • @origina_net4358
    @origina_net4358 12 днів тому

    brither can u make a seperate video on how waves lookline in a sperical form ?thats the only thing i still dont get

  • @lizblank3074
    @lizblank3074 12 днів тому

    Love this!

  • @warrenoakes4521
    @warrenoakes4521 13 днів тому

    Well explained, I’m a little closer thanks

  • @kisho2679
    @kisho2679 13 днів тому

    how can the amount of energy for each sublevel (s,p,d,f) per shell (1,...,7) be calculated?

  • @jimsvideos7201
    @jimsvideos7201 13 днів тому

    Beryllium is terrifically stiff, making it useful for such things as (at one point) Formula One brake calipers.

  • @WifeWantsAWizard
    @WifeWantsAWizard 13 днів тому

    For those of you who are wondering, second place is "silicon" at 28%. The ready abundance is part of the reason why the revolution of silicone construction materials is so vital to our modern world.

  • @timucintarakc2281
    @timucintarakc2281 14 днів тому

    captain obvious?

  • @Idrinklight44
    @Idrinklight44 14 днів тому

    Does iodine form crystals?

  • @nickmiguel1782
    @nickmiguel1782 14 днів тому

    OK but question how the hell do you know that it was 13.7 billion years ago how the hell do you know that

  • @jamesmackie6641
    @jamesmackie6641 16 днів тому

    Yes please

  • @exo-580
    @exo-580 16 днів тому

    ❤😂😅😅

  • @harveytudor1230
    @harveytudor1230 16 днів тому

    Isn’t the uncertainty of the Avogadro number the same as the uncertainty of the gas constant in the ideal gas equation?

  • @anteconfig5391
    @anteconfig5391 16 днів тому

    Quantum particles are always spread across spacetime because of the uncertainty principle. I understand that hydrogen can do this too. Does this mean that hydrogen can be found orbiting in cloud around another atom?

    • @ThreeTwentysix
      @ThreeTwentysix 15 днів тому

      In theory, everything's a quantum particle. The difference between an electron and a hydrogen atom is that as the momentum increases, the uncertainty of its position gets reduced to the point where it's mostly insignificant. So you *could* find a hydrogen atom suddenly appearing in a totally different electron cloud but a) a straight 'teleportation' style tunnelling is incredibly unlikely, and b) it would be difficult to tell it apart from straightforward proton transfer of the kind we regularly find in acid-base reactions.

  • @irwinlandgrave1644
    @irwinlandgrave1644 16 днів тому

    Oxygen right on the corner 🗿

  • @travelerlifedhw
    @travelerlifedhw 16 днів тому

    厉害,终于在比较底层的原理上理解了火焰的燃烧,包括气体(液体)、固体的燃烧。

  • @jimashkar4419
    @jimashkar4419 16 днів тому

    Nice job

  • @geraldstiling3735
    @geraldstiling3735 17 днів тому

    Oxygen does not stay in an elemental form for long ..🌬️💨..So it is a good indicator of life, if found on an Alien 👽👾 world 🌍

  • @mihaleben6051
    @mihaleben6051 18 днів тому

    3:19 that looks like a red cell

  • @mihaleben6051
    @mihaleben6051 18 днів тому

    No. I aint doing allat. Like this may happen, but just... no. I cant do it Oh yeah also P4O10 is real Yeah what the flourine.

  • @bogbox314
    @bogbox314 18 днів тому

    7th is best (for me)

  • @user-et2ro4oh2m
    @user-et2ro4oh2m 18 днів тому

    Is the abundance stat by numberbof oxygen atoms or mass? Only because doesn't iron make up more of the earth's mass or am i wrong? Good video btw

    • @ThreeTwentysix
      @ThreeTwentysix 15 днів тому

      It's by atoms because this is a chemistry channel. 👍

  • @MidhunKrishna-ez8lf
    @MidhunKrishna-ez8lf 18 днів тому

    Ive got a knowlegdgegasm from this explanation of orbitals. I feel like i am genius right now. 8 years i have spent trying to understand this.❤

  • @stevengill1736
    @stevengill1736 18 днів тому

    My HS chem teacher actually used to talk about "little boy atoms and little girl atoms"....

  • @whoff59
    @whoff59 18 днів тому

    This is why life after the first bacteria and algae produced oxygen it needed ~ 1 or 2 billion years until there was enough free oxygen in the water (and later in the air) for animals to be able to breathe. First all the stones had to be oxygenated ;-)

  • @vennstudios9885
    @vennstudios9885 19 днів тому

    three bonding orbitals...is this something to do with Hybridization of sp orbitals SP3 and SP2

    • @ThreeTwentysix
      @ThreeTwentysix 15 днів тому

      Yes, but we take it further so that all the orbitals of all the atoms overlap. Check out my video on Molecular Orbitals for details (it's in the description).

  • @feraudyh
    @feraudyh 20 днів тому

    My wife, Kate, is silly. She's a breath of fresh air.

  • @David_Hogue
    @David_Hogue 20 днів тому

    Electrons in phase and out of phase is exactly the question I had looking for this video

  • @sammyd7857
    @sammyd7857 20 днів тому

    So this could all be bullshit as it is still just a theory

    • @ThreeTwentysix
      @ThreeTwentysix 15 днів тому

      'Theories' in science are robust models that explain observed behaviour. They are always updated and, on occasion replaced, but by the time they are accepted as a 'theory' rather than a 'hypothesis', they at least work and are no longer bullshit.

  • @evansmulonda9423
    @evansmulonda9423 20 днів тому

    Otherwise this was nice and great

  • @evansmulonda9423
    @evansmulonda9423 20 днів тому

    I need more explanation on characteristics of orbitals

  • @danmartens8855
    @danmartens8855 20 днів тому

    Orbital = a space near the nucleus where we are likely to find an electron.

  • @tapaiferenc577
    @tapaiferenc577 21 день тому

    Are you hawe fals! oxigén is from óceán!the trable is ,20.93% mérve Time befor!

  • @ladybird3685
    @ladybird3685 21 день тому

    The second best element is Silicone

  • @nathansmith3608
    @nathansmith3608 21 день тому

    Thanks, I'd been wondering about this..

  • @simarkaur_47_
    @simarkaur_47_ 22 дні тому

    what are subshells? I have always just got to know that orbitals are madeup of subshells but what are these s,p,d,f subshells ?